1N5819WS S4
KUU
Needs validationlow risk
A strong pin-compatible alternative with nearly identical electrical characteristics in the same SOD-323 package.
Best Alternatives to LBAT40HT1G
Finding a replacement for the LBAT40HT1G Schottky diode involves matching its 40V, 350mA rating in a SOD-323 package. Several pin-compatible options exist, some offering upgraded current or voltage ratings for enhanced performance.
AI replacement insight
Electrical risklow
Many candidates match key specs. Verify Vf and Ir from the datasheet for sensitive applications.
Package risklow
SOD-323 is a standard package, ensuring mechanical compatibility.
Sourcing risklow
This is a common diode type with multiple manufacturers, improving availability.
Can it be replaced directly?
Direct replacement for LBAT40HT1G should use only Datasheet verified or Strong match candidates; many approved options still require engineering review.
Best replacement path
Start with Datasheet verified or Strong match candidates for LBAT40HT1G, then review parametric alternatives for package and electrical fit.
Main risk
The main risk is overlooking secondary parameters like forward voltage (Vf) and junction capacitance, which can affect circuit efficiency and high-frequency performance.
Recommended alternatives
4Alternative comparison matrix
| Feature / factor | LBAT40HT1G | 1N5819WS S4 | 1N5819WS(SL) | B1040WS | Compatibility / risk |
|---|---|---|---|---|---|
| Package | SOD-323 | SOD-323 | SOD-323 | SOD-323 | SOD-323 — Same package ensures form and fit.; 1N5819WS(SL): Same package ensures form and fit.; B1040WS: Same package ensures form and fit.; B16WS: Same package ensures form and fit. |
| Polarity Or Type | Schottky | Schottky | - | - | Schottky — Same diode type ensures similar function. |
| Voltage | 40V | 40V | 40V | 40V | 40V / 60V — Same reverse voltage rating.; 1N5819WS(SL): Same reverse voltage rating.; B1040WS: Same reverse voltage rating.; B16WS: Higher voltage rating provides more margin. |
| Current | 350mA | 350mA | 1.0A | 1.0A | 350mA / 1.0A — Same forward current rating.; 1N5819WS(SL): Higher current rating provides more margin.; B1040WS: Higher current rating provides more margin.; B16WS: Higher current rating provides more margin. |
| Forward Voltage | 600mV @ 200mA | 0.6V @ 200mA | 0.6V @ 1A | 0.55V @ 0.7A | 0.6V @ 200mA / 0.6V @ 1A / 0.55V @ 0.7A — Forward voltage is a very close match.; 1N5819WS(SL): Vf is comparable or better at target current.; B1040WS: Vf is comparable or better (lower loss). |
Application & sourcing insights
Questions & answers
Verified drop-in options for LBAT40HT1G are limited in the current batch. Review candidates marked Strong match or Datasheet verified, and validate package, pinout, and electrical limits before committing a BOM change.